Tire-fastening device.



NQL 826,144.

J. 0. COLE. TIRE FASTENING DEVICE.

APPLICATION FILED OGT.26, i905.

PATENTED JULY 17, 1906.

UNITED srarns PATENT oFFioE.

JOHN CLARENCE COLE, OF CHICOPEE FALLS, MASSACHUSETTS, ASSIGNOR TO FISK. RUBBER COMPANY, OF CHlOOPEE FALLS, MASSAGHUSETTS A coRroaA'rioN.

rias sasremue DEVEGE.

Specification of Letters fatent.

Patented Jur 17,1906.

Application filed October 26,1905. Serial No. 284.436.

This invention relates to pneumatic tires for vehicles; and the object thereof is to pro vide an improved mechanical fastening device for pneumatic tires of that type in which the baseof the tire-casing is clamped to the rim of the wheel by the clamping devices and the two sides of the circumferentially-divided base at the same time clampedtogetherin a direction transversely of the rim to constitute a practically tight casing and to provide a smooth interior surface of the casing for the inner tube to rest upon, the essential feature of the invention residing inthe mechanism whereby this clamping action in the direction of the plane of the wheel to secure the tire to said rim and the lateral clamping action to press the two parts of the circumferentiallydivided base may be effected at one operation, the construction of the rim being such that when the fastening devices are released the tire may be applied to'or removed from the rim from one side thereof, which is left unobstructed by the removal of parts of the fastening devices.

Having these ends in view, the invention consists in providing a substantially fiat rim having an abutment on one edge thereof for one side of the base of the casing and in providing a flanged ring for the opposite side of the base to fit over the upper edge of the base and against the outer edge of the base, a con tractible ring being fitted to the rim outside of the flanged ring to bear against the latter and against an inclined lip on the rim, to the end that the contraction of the ring may force the flanged ring laterally over the inclined surface of the. flanged base of. thetirc and simultaneously force the latter against the opposite part of thebase and also downwardly against the rim of the wheel.

The invention is illustrated in the accompanying drawings, in which Figure 1 is a perspective view of a portion of a tire and the rim of a vehicle and fastening devices embodying this invention. Fig. 2 is a like view showing certain modifications provide in the construction of the rim. Fig. 3 is similar to the other views, showing certain modifications in'the construction of a part of the fastening devices. I

Referring to the drawings, a indicates the outer casing of a tire which is circumferentially divided at the line b, extending from the under side of the base to the nterior of the casing, the latter opening along this line to permit theinsertion or removal of the inner tube 0. This form of tire is well known; but in order to produce the best results or in order to obtain successful results itis essential that the two flanged parts of the base of the tire (indicated in the drawin s by d and e) lying, res ectively, on either side of the dividing-line'gshould, when the tire is fastened to the rim of a wheel, be forced tightly together not only to close. any'openingon the line of division,'but also to constitute a laterally solid base and prevent any Working of the parts at that po nt or any movement away from the fastening devices. The two flanged ortions of the base referred to are with outwardly and downwardly extending upper surfaces f.

This tire and base are the same as those shown in United States Letters Patent issued.

to me on March 25, 1902, numbered 696,391,

111 which means are shown whereby the two flanged parts d and e of the base may be simultan'eously forced togetherin a direction transverse to the rim and forced toward the rim substantially in the plane of the wheel;

but these devices are of such a nature as to In this invention the rim j (preferably flat) is provided with an abutment k on one side thereof having one vertical portion to bear againht the side of the base and another in clined portion, as m, to extend over the inclined surface f of the base of the tire to lock one edge of the to the rim. This abutment may be made integral with the rim, as shown in Fig. 1, orit may be made separately therefrom, as shown in Fig.- 2, Which-case the rim would be provided with an upturned edge or rib ii, against which the vertical portion or wal of the annular abutment would get abearing. On the 0 posite border of the rim a channel 0 is rolle which is curved in cross-section or made in such other form that cross-section is preferably like unto the abut- 4 ment is, and the diameter of said ring, measured from the inner edges thereof, (indicated by 7",) is such as to permit it to be passed over the outer border of the rim and come to a bearing, as shown in the various drawin s, against the upper inclined surface f of t e base without coming in contact with the .vertical edge of the rim-that is to say, there -must always be s ace enough to emit this ring q to move aterally towar the abutment k, whereby the two parts of the base may be forced together and whereby by forcing the upper inclined portion of said ring upwardl over the downwardly-inclined portion f of the base the latter may be at the same time forced toward the rim. 'lhe vertical part of the ring g may eventually contact with the vertical edge of the base; but the main function of the vertical part of the ring is to provide a bearing for the contractible ring 8, whereby the latter may be kept down to small diameter. This crowding of the rin laterally of the rim of the wheel is effected lgy locating the expansible and contractible ring 8 between the upturned lip p of the groove in the rim and the vertically-disposed side of the ring which is adjacent to the edge of the base and when so located eontracting said ring. This, preferably, is accomplished by uniting the two ends of a ring in a turnbuckle t, the opposite ends of the rin being provided with right and left hand threads in the usual manner.- To accommodate the turnbuckle, the vertical side of the ring is cut away, as at c, and at w the lip p of the run is cut away, and by this means ample room is provided for the rotation of the turnbuckle. As the latter is rotated and the rings begins to contract it, is forced by means of the inclined surface against which it bears, as at m, against the vertical side of the ring movin the latter bodily transversely of tlie rim 0 the wheel and crowding the riniupwardly over .the inclined surface f of the ase of the wheel, thereby accomplishing both of the objects sought to be obtained and which are attained in my said prior construction by means of a multilicity of transversely-located bolts and a oose ring fitting over the inclined surface of the base againstwhich the bolts bear.

My present invention is much simpler in that but one operation is necessary to loosen the ring 8, whereby it may be ex anded sufficiently to remove it from the c annel 0 in the rim and ermit the removal of the ring q, whereupon t e tire may be drawn ofi of the rim in the same manner that the ring g was removed. v

It is entirely immaterial -what form the channel 0 may take, provided the'cooperative action of it and the ring 8 may serve to move the clamping ring q laterally across the rim of the wheel for the pur ose described.

In Fig. 2a substantia ly rectangular form is shown having an inclined outer edge like the lip p, though the channel in this case is both deeper and narrower, being made particu'larly to adapt it to the use of the ring 8, I,

which is transversely flattened to give it an oblong shape in cross-section. This permits the narrowing of the rim somewhat and gives a broader bearing on the vertical side of the ring q forthe ring 8. When this construction embodyingthe narrow channel 0 is used, it necessitates the making of the ring q of such diameter as will ermit it to slide over the face of the rim rat er than aashownin Fig. 1, in which the vertical sid -of the ring 11 extends into a space between t re edge of the rim and the contractible rin s.

In the construction shown in %ig. 3 the rin '3 is a sort of combination of that shown in ig. 1 and that in Fi 2name1y, it has a rounded outer edge to ear against the lip p on the rim made in substantially the same manner as shownin Fig. 1, but it has also the flat side of the ring 8 (shown in Fig. 2) to bear against the vertical side of the ring g.- Any one of these forms is an efiicient one.

I am aware that it is not new to use a contractible rin to secure a tire to the rim of a wheel, and, roadly, I do not claim this; but I believe it to be new to construct tire-fastening'devices in which the contractible ring serves not only to secure the base of the tire to the rim of the wheel in itheplane of the latter, but also to clam the two parts of a longitudinally-divided ase together transversely oi the rim by the same operation.

. By the use of the terms" up and down and their derivations in the specificationandclaims I mean from and toward the axis of the wheel.

Having thus described my invention,what

I claim, and desire to secure by Letters Patent of the United States, is-

1. A tire construction comprising a 'rim having an abutment on one side thereof for the base of the tire, there being a circumferentially-disposed channel. in said rim in the op- I-IO . channel and against said ring on the-base of nel, a ring forced together and the ring prevented from engaging the inner edge of the channel, as.

l other, a tire-casing wider than the outer surface of the rim, a ring engaging the tire-casing and having a flange extending into the channel and below the outer surface of the rim, a contractile ring engaging the channel and ring, whereby the tire-casing may be clamped to the rim.

4. A tire construction comprising a rim substantially L-shaped in cross-section including an abutment at one side, a channel at the other side, a tire-casing engaging the rim and overhanging the channel, a ring flange for engaging the tire-casing, and contractile meanssecuring the tire-casing to the rim and located in the channel, whereby the abutment and ring are forced against the said casing in opposite directions.

JOHN CLARENCE COLE.

Witnesses:

K. I. CLEMONS,

A. OHAPIN.

thereof, and a contractible ring located in, and bearing against the outer border of said the tire, means to, contract said ring, said ring during its contraction being movable inwardly and downwardly relative to the rim.

2. In a tire construction, a rim having an abutment at one side and a circumferentiallydis osed channel at the opposite side, a divi ed fianged tire-casing the base of which projects beyond the inner edge of the chane fitted over the flanged base-and depending into the channel, contractile means engaging the ring and the inclined edge of the channel and the rim whereby the divided flanged base of the tire-casing is' described.

3. In a tire const uction, a rim having an abutment at-oneside and a channel at'the having a- 

